Results 41 to 50 of about 17,819 (172)
Dizhen xuebao, 2019 对鲜水河断裂带重磁异常进行向上延拓，通过计算观测面高度异常与延拓后异常之间的相关系数得出最佳向上延拓高度，该延拓高度所对应的延拓结果即为研究区构造背景产生的异常值。向上延拓结果显示布格重力异常值沿鲜水河断裂带自北西向南东逐渐增大，反映出下地壳底边界沿该方向呈升高趋势，可能由青藏高原地壳软弱物质 “东向逃逸” 所致。化极后ΔT磁异常延拓结果表明鲜水河断裂带南东段的康定—石棉以东为强磁性刚性基底。以鲜水河断裂带为分界的不同地块之间基底岩石及地层物性的不同是断裂带南北磁性差异的主导原因 ...
Yifei Ai, Jian Zhang
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A study of 65 cases of urinary tract injury [PDF]
, 1984 1)腎外傷において, 受傷時DIPにて, 腎盂像の描出あるものは, 軽度～中等度の損傷と考え, 保存的に治療をおこない, 腎盂像の描出のないものは高度の損傷と考え, 動脈造影をおこない, その損傷の程度にあわせた手術をおこなった.2)受傷時DIPにて腎盂像の描出良好のものでも, 再出血を繰りかえすもの, 血尿の持続するものは, 高度の損傷へ進展する可能性があるため注意深い観察が必要である.3)1例の尿管外傷は, 一般に言われているごとく, 特徴のない臨床症状のため診断が遅れ, 腎摘をせざるをえなかった ...
原, 繁 +4 more
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ABCA12 Frameshift Deletion in Domestic Cats With Ichthyosis Fetalis
Veterinary Dermatology, EarlyView.ABSTRACT Background Ichthyosis fetalis (IF), also known as harlequin ichthyosis, is a rare and often fatal autosomal recessive congenital skin disorder. It is characterized by thickened, hard skin plaques and deep skin fissures that limit mobility and cause malformations of the eyes, lips and ears.
Jeanna M. Blake +2 more
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Gaoya dianqi, 2015 某型号高压开关用铸态拐臂在试验过程中发生断裂,通过宏观检验、化学分析、金相检验、扫描电镜与能谱分析等方法对铸态拐臂断裂的原因进行了分析。结果表明:非金属夹杂是裂纹源萌生的地方,随后裂纹不断扩展,最终导致球墨铸铁拐臂断裂失效。拐臂的断裂机制为解理+沿晶界的混合型断裂,连续分布的皮下气孔也是促使拐臂断裂的原因。
王建伟, 何佳, 赵涛, 邹新峰
doaj
Dizhen xuebao, 2020 收集郯庐断裂带中南段59次地震的等震线数据，运用遗传算法，将郯庐断裂带中南段按照断裂带东侧和西侧分区，分别反演其地震烈度衰减参数，反演时使目标函数的一范数最小，同时对烈度衰减曲线的远场施加约束，通过自助抽样（Bootstrap）技术多次重复反演以对反演结果的稳定性进行评价，并将断裂带东侧和西侧的烈度衰减曲线分别与第五代地震动参数区划图进行对比。结果表明：使用本文提出的方法进行反演可使烈度衰减曲线即使不进行近、远场补点，也能收敛；断裂带东侧和西侧的结果均与第五代地震动参数区划图的结果存在差异 ...
Yicheng He +5 more
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World Water Policy, Volume 12, Issue 1, February 2026.ABSTRACT Water security in tropical regions faces escalating pressures from climate change, land‐use shifts, and population growth. We conducted a bibliometric review of 1146 peer‐reviewed articles (1964–2023) on tropical water security. Latent Dirichlet Allocation identified 13 thematic topics and their evolution. Publications rose sharply after 2012,
Karling Fernanda Schuster +3 more
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World Water Policy, Volume 12, Issue 1, February 2026.ABSTRACT This paper examines the rise and collapse of the 2021 United Arab Emirates (UAE)–Israel–Jordan Water‐for‐Energy Deal, a landmark initiative that sought to exchange Jordanian solar energy for Israeli desalinated water. Presented as a breakthrough in regional cooperation and environmental peacebuilding, the agreement was brokered under the ...
Majed Abu‐Zreig, Hussam Hussein
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, 2016 中国地质调查局立项开展的渤海海峡跨海通道地壳稳定性的调查评价是重大涉海工程前期的基础性工作,该项目在收集已有成果资料的基础上,对渤海海峡区域进行了系统的地球物理勘测与研究,分析了灾害地质类型, 甄别出了主要的活动断裂,开展了渤海海峡及邻区的外围地震活动性和地壳层析成像研究,并进行了地应力、微震实地长期监测 ...
赵铁虎, 赵铁虎 齐君
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Rare Metals, Volume 45, Issue 1, January 2026.ABSTRACT TA18 alloy is an ideal material for piping systems in the aerospace field, the low notch sensitivity and high damage tolerance enhance its engineering application value. However, the complex failure mechanism influenced by strain gradient necessitates further improvement of the service stability for TA18 alloy in practical engineering ...
Xin Du +6 more
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Rare Metals, Volume 45, Issue 1, January 2026.ABSTRACT Transition metal carbides demonstrate exceptional mechanical properties but confront a critical hardness–toughness trade‐off. Spinodal decomposition‐mediated phase separation is an effective approach to enhance mechanical properties in carbide ceramics through high‐temperature treatment.
Zhi‐Xuan Zhang +6 more
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